Easy site update

I REALLY need to make one page for her Schedule, that she could update herself. The problem is that she would not be able to edit the simplest HTML code/upload file via FTP or cpanel.

I was thinking about installing some blogging software. Would that be a solution? Can blog design be integrated in the design of the site? It needs to be really simple, like allow her to login and post the Schedule change.

Or should I be looking at some PHP form/forum scripts? Would i be able integrate them in my site design?